first attempt at coils

[Imnukingfutz]

OK...I have been redoing the coils in my Pro tank for about 3 weeks now and they are coming out well - 1.5 ohm avg

I recently made coils for my igo-w and it seems like a whole different ball game. I can not get it to read higher than .8 ohm for 2 coils.
I tried adding extra coils in the coil but that only gives me .1 gain.

I am using 32 wire

I friend said the coils may be too large a diameter...is that possible? Help...I have a VTR that wont fire my igo-w now for more than a few seconds. It works great on my cheap smok twist battery.

 

[cramptholomew]

Dual coils halve the resistance. So, two 1.0 ohm coils in parallel only make .5 ohms resistance, and quad coils quarter the resistance. It's not the diameter that matters.

 

[ryanvapz0714]

If u want to run dual coils on your vtr u need to build 2 coils around 2.5ohms. When running dual coils your cut your resistance in half unlike your protanks. So two coils that your are consistently building at 1.5 would be between .7 and .8 on your igo in dual coil.

 

[Rickb119]

Ohms law says that resistance in parallel (which is what you have there) is divided. In other words, if your coils are 1.6 ohm each the total resistance will be .8 ohm.

You will need to either double the number of wraps in each coil (to make them each 3.0 ohm) or use larger diameter wire (and still make them to be 3.0 ohm each). This assumes that your objective is for a 1.5 ohm load.

 

[ryanvapz0714]

Your coils tho do look pretty nice! If u had a mech mod with some good batteries im sure that thing would vape extremely well!

 

[rurwin]

...or use larger diameter wire (and still make them to be 3.0 ohm each)...

Smaller diameter for higher resistance. A factor of 1/1.414 would double the resistance. AWG 35 should be right.

If it was me though, I'd just pack in twice the number of turns.

It's length of the wire, not the number of turns that determines the resistance. So you would increase the resistance if you made the coils bigger with the same number of turns. But diameter and circumference are proportional, so you would have to double the diameter, and I don't think there is room.

Groan. I feel a master-class in resistivity coming on. I'll see if I can put something together sometime.

 

[Christopherja]

Well...what everyone else has already said.

Might want to check this out too Dual Coils Explained

 

[Imnukingfutz]

Thank you all for the information. I know all the info I would ever want is located on this site - either directly or through links, but this site is so massive its next to impossible for a noob to weed through everything.

 

[Imnukingfutz]

Well...what everyone else has already said.

Might want to check this out too Dual Coils Explained

That is a fantastic article, thank you.